Let's try a different approach.....
How do you think this would surf? More to the point, what would be it's downsides?
The 9'6" is 24.25" x 4" @ 106.4L (from GSI - but I'd buy a custom from Josh).
The Jumbo Jet and the Mega Magic are pretty much pitched as 'a big board that surfs like a smaller board' - but it's not quite that simple, is it?